https://www.ecoustics.com/reviews/astell-kern-a-ultima-sp3000
Sony makes excellent phones with excellent audio
Someone gonna tell them what smartphones can do?
nother useless audiophile wanking material
Android phone with microSD slot + UAPP (with PEQ and settings from AutoEQ) + USB DAC/Amp (9038D for example). Have Amazon trialled various very expensive DAPs. They've good, but not better with any of my IEMs or headphones.
